Charging the 12-Volt Battery

Disconnect both battery cables to prevent damaging your vehicle’s electrical system. Always disconnect the negative (–) cable first, and reconnect it last.

If the battery cable is removed while a system update is being performed, the electrical system can be permanently damaged. Only remove the battery cable when a system update is not being performed.

Detail

When you find corrosion, clean the battery terminals by applying a baking powder and water solution. Clean the terminals with a damp towel. Cloth/towel dry the battery. Coat the terminals with grease to help prevent future corrosion.

When replacing the battery, the replacement must be of the same specifications.
Consult a dealer for more information.

The Vehicle Stability Assist^TM (VSA^®) system, Adaptive Cruise Control (ACC) with Low Speed Follow, safety support, low tire pressure/TPMS*, and parking brake and brake system (amber) indicators may come on in amber along with a message in the driver information interface when you set the power mode to ON after reconnecting the 12-volt battery.
Drive a short distance at more than 12 mph (20 km/h). Each indicator should go off. If any do not, have your vehicle checked by a dealer.

* Not available on all models